🔧 Seal it once, seal it right — the pro’s choice for lasting bonds!
SIKA Sikaflex-221 is a professional-grade, black polyurethane sealant and adhesive offering permanent elastic seals. It bonds to multiple surfaces including metal, plastic, wood, and glass, cures in 5-7 days with initial hardening in 2 hours, and is NSF approved for drinking water safety. Waterproof and resistant to aging and harsh chemicals, it comes in a convenient cartridge for easy application, making it ideal for durable internal seals and bonding.
Color | Black |
Brand | SIKA |
Liquid Volume | 10.1 Fluid Ounces |
Full Cure Time | 5-7 Days |
Initial Hardening Time | 2 Hours |
Item Form | Paste |
Maximum Gap Fill | 1 Inches |
Surface Recommendation | Metal, Wood, Glass |
Water Resistance Level | Waterproof |
Number of Items | 24 |
Manufacturer | SIKA |
Global Trade Identification Number | 10033886005118 |
Material | Polyurethane |
Item Weight | 22.7 pounds |
Product Dimensions | 12 x 8 x 12 inches |
Item model number | 90893 |
Manufacturer Part Number | 90839 |
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